55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
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// Copyright (c) Facebook, Inc. and its affiliates.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <folly/ExceptionWrapper.h>
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#include <condition_variable>
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#include <mutex>
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#include "rsocket/Payload.h"
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#include "yarpl/Flowable.h"
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#include "yarpl/flowable/Subscriber.h"
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/**
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* Subscriber that logs all events.
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* Request 5 items to begin with, then 3 more after each receipt of 3.
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*/
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namespace rsocket_example {
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class ExampleSubscriber : public yarpl::flowable::Subscriber<rsocket::Payload> {
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public:
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~ExampleSubscriber();
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ExampleSubscriber(int initialRequest, int numToTake);
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void onSubscribe(std::shared_ptr<yarpl::flowable::Subscription>
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subscription) noexcept override;
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void onNext(rsocket::Payload) noexcept override;
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void onComplete() noexcept override;
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void onError(folly::exception_wrapper ex) noexcept override;
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void awaitTerminalEvent();
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private:
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int initialRequest_;
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int thresholdForRequest_;
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int numToTake_;
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int requested_;
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int received_;
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std::shared_ptr<yarpl::flowable::Subscription> subscription_;
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bool terminated_{false};
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std::mutex m_;
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std::condition_variable terminalEventCV_;
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};
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} // namespace rsocket_example
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